20494500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1051}}^1$

素因数の和:1086

約数の個数: 96

約数和(自身を含む): 64331904

約数和(自身を除く): 43837404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 195, 250, 260, 300, 325, 375, 390, 500, 650, 750, 780, 975, 1051, 1300, 1500, 1625, 1950, 2102, 3153, 3250, 3900, 4204, 4875, 5255, 6306, 6500, 9750, 10510, 12612, 13663, 15765, 19500, 21020, 26275, 27326, 31530, 40989, 52550, 54652, 63060, 68315, 78825, 81978, 105100, 131375, 136630, 157650, 163956, 204945, 262750, 273260, 315300, 341575, 394125, 409890, 525500, 683150, 788250, 819780, 1024725, 1366300, 1576500, 1707875, 2049450, 3415750, 4098900, 5123625, 6831500, 10247250, 20494500]

約数ペア:

[(1, 20494500), (2, 10247250), (3, 6831500), (4, 5123625), (5, 4098900), (6, 3415750), (10, 2049450), (12, 1707875), (13, 1576500), (15, 1366300), (20, 1024725), (25, 819780), (26, 788250), (30, 683150), (39, 525500), (50, 409890), (52, 394125), (60, 341575), (65, 315300), (75, 273260), (78, 262750), (100, 204945), (125, 163956), (130, 157650), (150, 136630), (156, 131375), (195, 105100), (250, 81978), (260, 78825), (300, 68315), (325, 63060), (375, 54652), (390, 52550), (500, 40989), (650, 31530), (750, 27326), (780, 26275), (975, 21020), (1051, 19500), (1300, 15765), (1500, 13663), (1625, 12612), (1950, 10510), (2102, 9750), (3153, 6500), (3250, 6306), (3900, 5255), (4204, 4875)]